polyhedron([
            [0, 10, 10],
            [10, 0, 10],
            [10, 10, 10],
            [0, 0, 10],
            [10, 0, 0],
            [0, 10, 0],
            [10, 10, 0],
            [0, 0, 0],
            [0, 0, 5]],
           [
            [0,2,1],
            [0,1,3],
            [4,6,5],
            [4,5,7],
            [8,1,4],
            [8,3,1],
            [7,3,8],
            [8,4,7],
            [1,2,6],
            [1,6,4],
            [0,5,6],
            [0,6,2],
            [3,7,5],
            [3,5,0]
                ]);
